DE69532771D1 - Folie zur Luminanzsteuerung - Google Patents

Folie zur Luminanzsteuerung

Info

Publication number
DE69532771D1
DE69532771D1 DE69532771T DE69532771T DE69532771D1 DE 69532771 D1 DE69532771 D1 DE 69532771D1 DE 69532771 T DE69532771 T DE 69532771T DE 69532771 T DE69532771 T DE 69532771T DE 69532771 D1 DE69532771 D1 DE 69532771D1
Authority
DE
Germany
Prior art keywords
control film
luminance control
luminance
film
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69532771T
Other languages
English (en)
Other versions
DE69532771T2 (de
Inventor
Mark E Gardiner
Mark B O'neill
David L Wortman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
3M Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Co filed Critical 3M Co
Application granted granted Critical
Publication of DE69532771D1 publication Critical patent/DE69532771D1/de
Publication of DE69532771T2 publication Critical patent/DE69532771T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1809—Diffraction gratings with pitch less than or comparable to the wavelength
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/008—Surface plasmon devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
DE69532771T 1994-09-27 1995-09-07 Folie zur Luminanzsteuerung Expired - Lifetime DE69532771T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31272094A 1994-09-27 1994-09-27
US312720 1994-09-27

Publications (2)

Publication Number Publication Date
DE69532771D1 true DE69532771D1 (de) 2004-04-29
DE69532771T2 DE69532771T2 (de) 2004-09-30

Family

ID=23212701

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69513992T Expired - Lifetime DE69513992T2 (de) 1994-09-27 1995-09-07 Folie zur luminanzsteuerung
DE69532771T Expired - Lifetime DE69532771T2 (de) 1994-09-27 1995-09-07 Folie zur Luminanzsteuerung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69513992T Expired - Lifetime DE69513992T2 (de) 1994-09-27 1995-09-07 Folie zur luminanzsteuerung

Country Status (9)

Country Link
US (1) US6091547A (de)
EP (2) EP0942227B1 (de)
JP (1) JPH10506500A (de)
KR (1) KR100451602B1 (de)
AU (1) AU3547095A (de)
CA (1) CA2199722C (de)
DE (2) DE69513992T2 (de)
ES (1) ES2139937T3 (de)
WO (1) WO1996010148A1 (de)

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Publication number Publication date
WO1996010148A1 (en) 1996-04-04
US6091547A (en) 2000-07-18
DE69532771T2 (de) 2004-09-30
DE69513992T2 (de) 2000-07-27
EP0942227A1 (de) 1999-09-15
KR970706467A (ko) 1997-11-03
DE69513992D1 (de) 2000-01-20
EP0783648A1 (de) 1997-07-16
EP0942227B1 (de) 2004-03-24
EP0783648B1 (de) 1999-12-15
ES2139937T3 (es) 2000-02-16
CA2199722A1 (en) 1996-04-04
AU3547095A (en) 1996-04-19
JPH10506500A (ja) 1998-06-23
KR100451602B1 (ko) 2004-12-17
CA2199722C (en) 2006-01-31

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